Brake-operating mechanism



July 29, 1930. K, E, L YMAN 1,771,854

BRAKE OPERATING MEcHANIsM Filed May 5, 1927 Patented July 29, 193e i *Para* risica f KENNETH E. LYIVIA, 0F CHICAGO, LLNOIS, ASSIG-NORTO BE-EDX BRAKE "COMPANY, I v

OF CHICAGO, ILINOS, A COB-PORATICN GF ILLINOIS i BRAKE-ornaments Messieurs-r,

Application led. May 5, 1952*?.v Serial No. 138,976,

This invention relates to shaft supports, equivalent is provided with a'novel simpliand is illustrated as embodied in a novel simplified support for the chassis end of a shaft operating a front-wheel brake.

Preferably the support includes only two simple parts, shown as stampings, one being a stationary member which may be carried by the chassis frame and which has an outwardly-spherical portion formed with a relatively large opening, and the other being a movable member having a shaft-embracing sleeve projecting through the opening intol the interior of the stationary member.

A spring tensioned between the sleeve and the stationary member urges an interiorlyspherical shell, forming part of the movable member, against the above-describedy outwardlyspherical portion. Thus the entire support consists of two simple stampings and one spring.

The above and other objects and features of the invention, including various novel and desirable details of Construction, will be apparent from the following description of one illustrative embodiment shown in the accompanving drawing, in which:

Figure 1 is a vertical transverse section through one front brake and associated parts:

Figure 2 is a section on the line 2-2 of Figure 1, showing the novel support in outside elevation; and

Figure 3 is a section on the line -3-3 of Figurel, showing the novel support in inside elevation.

The illustrated brake includes a drum 10.. rotating with a wheel (not shown) on the spindle 12 of a knuckle 14 swivelled. by a king pin 16 or the like, at the end of a front axle 18 support-ing a chassis frame 20 through the usual springs 22. A support such as a hacking plate 24 carried by the knuckle 14 is arranged at the open side of drum 10.

The brake proper includes shoes 26 within the drum 10, and Controlled by means such as a cam 28 operated, through a universal ioint 30 above the king-pin 16', by a shaft Shaft 32 may be rocked, to apply the brake, by suitable means such as an arm 34.

According to an important feature of the present invention, the chassis frame 20 or its fied support for the end ofshaft 32, the illustrated Asupport permitting the shaft to moveendwise and 'to rotate,*and also tomove' angularly crosswise of its axis to compensate for movements due to flexing of lspring 22.*

In this particular arrangement', the end of fy the shaft is slidably embraced bya sleeve 36 carried by, or integral with, a shell 38 which is interiorly-spherical and Awhich slidably engages an outwardly-spherical portion 40 on a stationary member 42 secured by bolts 44 to the chassis frame 20.

The outwardly-spherical portion 40 faces away .from the chassis frame 20, and is formed with a relatively large central opening through Vwhich the sleeve 36 projects into the interior of the stationary member 42.

ly-sphericalportion 38 by a spring 46 tensioned between sleeve 36 and member 42. In theillustrated arrangement, a flange 48 spun on the end of sleeve 36 is engaged by none end coil of spring 46, and a ledge 50 pressed. in member 42 is engaged by the other end coil of spring 46.

While one illustrative embodiment has been described in detail, it is not my intention to limit the scope of the invention to that particular embodiment, or otherwise than by the terms of the appended claims.

I claim:

1. A support for the chassis end of a brake-operating shaft comprising, in combination with the shaft, a chassis-supported member having an outwardly-spherical p0rtion directed away from the chassis and formed with a relatively large opening, an

interiorly-spherical shell slidably engaging said outwardly-spherical portion and having a sleeve embracing the end of the shaft formed with a relatively large opening, an interiorly-spherical shell slidably engaging said outwardly-spherical portion and having a sleeve embracing the shaft and projecting through said opening to the interior of the stationary member, and a spring tensioned between the sleeve and the stationary mem.-

Y ber and urging the shell against the outwardly spherical portion.

3. A shaft support comprising, in combination with the shaft, a stationary member having an outwardly-spherical portion formed with a relatively large opening, an

interiorly-spherical shell sliclably engagingl said outwardly-Spherical portion and having integrally formed therewith a sleeve embracing the shaft and projecting through said opening to the interior of the stationary mem ber, and means tensionecl between the sleeve and the stationary member and urging the shell against the outwardly spherical portion.

4. A shaft support comprising7 in combination with the draft, a stationary member having an outwardly-spherical said outwardly-spherical portion and having a sleeve embracing the shaft and projecting through said opening to the interior of the stationary member, and a spring tensioned between a ange on the sleeve anda step portion on the stationary member and urging the shell against the outwardly-spherical portion.

In testimony whereof, I have hereunto signed my name.

KENNETH E. LYMAN.

portion formeel with a relatively large opening, an interorly-spherical shell sliclably engaging 

